Schrödinger-Navier-Stokes Equation for the Quantum Simulation of Navier-Stokes Flows

• URL: http://arxiv.org/abs/2604.11113v1
• Date: Mon, 13 Apr 2026 07:29:21 GMT
• Title: Schrödinger-Navier-Stokes Equation for the Quantum Simulation of Navier-Stokes Flows
• Abstract summary: A SNS formulation of classical fluids was first presented in a largely un-noticed paper by Dietrich and Vautherin back in 1985.<n>This is the first quantum algorithm based on a quantum-like wave formulation of the genuine Navier-Stokes equations.
• Score: 70.36032466145112
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The search for quantum-like wave formulations of the Navier-Stokes (Schrödinger-Navier-Stokes, SNS for short) equations describing classical dissipative fluids has met with increasing attention in the recent years, due to the large portfolio of potential applications in science and engineering. A SNS formulation of classical fluids was first presented in a largely un-noticed paper by Dietrich and Vautherin back in 1985(Journal de Physique). In this paper, we revisit this specific SNS approach and assess its viability for quantum implementations based on Carleman embedding/linearization techniques. Specifically, we i) Clarify in full mathematical detail why the SNS dissipator presents a steep challenge for quantum computers and propose a way out strategy based on the Hamilton-Jacobi (HJ) formulation of fluid dynamics; ii) Develop a corresponding quantum algorithm using a new technique based on a tensor-network representation of Carleman embedding of the HJ equations (CHJ) which permits substantial memory savings; iii) Emulate the CHJ quantum algorithm on a classical computer and analyse its convergence and accuracy for the specific case of Kolmogorov-like flows at moderate Reynolds numbers. To the best of our knowledge, this is the first quantum algorithm based on a quantum-like wave formulation of the genuine Navier-Stokes equations, including pressure, dissipation and vorticity.

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